APA Citation

Gray, H. P. (1970). International travel--international trade. Lexington,: Heath Lexington Books.

Chicago Style Citation

Gray, H. Peter. International Travel--international Trade. Lexington,: Heath Lexington Books, 1970.

MLA Citation

Gray, H. Peter. International Travel--international Trade. Lexington,: Heath Lexington Books, 1970.

Warning: These citations may not always be 100% accurate.